Lightweight concrete composite blocks

ABSTRACT

An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The station conveyor conveys the form or a multitude of forms around the apparatus in a continuous loop to produce a desired rate of production of lightweight concrete composite blocks. The form-loading station fills the form with a lightweight concrete composite. The form assembly station assembles the form to seal the composite within the form. The curing oven cures the lightweight concrete composite into a lightweight concrete composite block. The block removal station removes the lightweight concrete composite block from the form prior to the return of the form to the form-loading station for re-use.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation-in-part of application Ser. No.09/887,369, which was filed Jun. 22, 2001.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to lightweight concrete and, moreparticularly, but not by way of limitation, to unitary lightweightconcrete composite blocks, an apparatus and corresponding method formanufacturing unitary lightweight concrete composite blocks, and amethod of using unitary lightweight concrete composite blocks.

2. Description of the Related Art

The primary building materials utilized today are wood and concrete.Wood unfortunately has become extremely expensive due to reducedsupplies caused by restrictions resulting from today's environmentallyconscious society. Further, wood often does not provide the structuralsafety available from other building materials, such as concrete.Concrete is unfortunately expensive, which restricts its use to projectsrequiring the structural safety advantages associated with concrete.

Thus, the building industry constantly seeks to reduce building costswhile at least meeting or actually improving upon structural safetystandards. One such improved product consists of lightweight concrete,which is composed of water, cement, and polystyrene. Lightweightconcrete provides reduced costs in materials by replacing cement withless expensive polystyrene. Lightweight concrete further providesstructural safety comparable to cement and improved over wood.

Unfortunately, the reduced materials costs of lightweight concrete arecounteracted through manufacturing difficulties, which drive up costs.Currently, lightweight concrete is virtually manufactured manually inthat lightweight concrete slurries are poured into molds and allowed tocure but, upon removal from molds, must be glued together and trimmedbefore a block sufficient for use exists. Furthermore, there does notcurrently exist lightweight concrete blocks suitable for use inconstructing interior walls. Accordingly, unitary lightweight concretecomposite blocks that are easy to manufacture and are suitable for usein constructing interior walls would significantly improve over theforegoing related art.

SUMMARY OF THE INVENTION

In accordance with the present invention, lightweight concrete compositeblocks are suitable for use in constructing walls. Such blocks arelightweight concrete composite that may be cured into the shape of awall, which includes first and second sidewalls, first and secondendwalls, and first and second faces including a depth therebetween. Aconduit may be disposed within the depth between the first and secondfaces. At least one end of the conduit typically protrudes from theblock, and the conduit may be plumbing piping or electrical conduit. Oneend of the conduit may connect to an electrical box disposed within thedepth between the first and second faces. The first sidewall may includea tongue and the second sidewall may include a groove.

An apparatus for manufacturing lightweight concrete composite blocksincludes a form, a form loading station, a form assembly station, astation conveyor, a curing oven, and a block removal station. The formdefines a desired shape that holds a volume of composite. The formloading station receives composite and delivers the composite to theform. The form assembly station facilitates assembly of the form. Thestation conveyor conveys the form about the apparatus in a continuousloop. The curing oven cures the composite into a lightweight concretecomposite block. The block removal station removes the lightweightconcrete composite block from the form.

The form includes a bottom assembly and a cap that seats on the bottomassembly. The form further includes a mating assembly that couples thebottom assembly with the cap. The form still further includes an insertthat shortens the form to produce smaller lightweight concrete compositeblocks. The bottom assembly includes walls, mating assemblies thatcouple the walls together, and a conduit notch that supports a conduitwithin the bottom assembly at a designated depth. Upon the curing of thecomposite into a lightweight concrete composite block, the conduitremains disposed within the block at the designated depth.

The form loading station includes a cap removal/replacement assemblythat removes and replaces a cap of the form and a screed assembly thatreceives composite and delivers the composite into a bottom assembly ofthe form. The cap removal/replacement assembly includes lifting railsadapted to engage a cap bracket of the form, a stabilizer bar connectingthe lifting rails, and a lifting cylinder attached to the stabilizer barthat moves between an engagement position and a raised position. Thescreed assembly includes a screed track extending over the stationconveyer, a screed box coupled with the screed track, a screed cylindercoupled with the screed box that conveys the screed box along the screedtrack between a retracted position and a loading position, a levelinghopper disposed within the screed box that fills and levels the formwith composite, an auger disposed within the leveling hopper that evenlydistributes composite into the form, a screed motor for rotating theauger, and a leveling cylinder coupled with the leveling hopper thatslides the leveling hopper back and forth inside the screed box.

The station conveyor conveys the form or a multitude of forms around theapparatus in a continuous loop to produce a desired rate of productionof lightweight concrete composite blocks. A first station conveyorconveys unloaded forms to the form loading station. A loading conveyorreceives from the first station conveyor unloaded forms for filling withcomposite and delivers loaded forms from the form loading station. Afirst roller conveyor receives from the loading conveyor loaded formsand delivers the loaded forms to the form assembly station. A secondstation conveyor receives from the first roller conveyor loaded formsand conveys loaded and assembled forms from the form assembly stationthrough the curing oven and to the block removal station. An unloadingconveyor receives from the second station conveyor forms filled withcured composite and delivers unloaded forms from the block removalstation. A second roller conveyor receives from the unloading conveyorunloaded forms and delivers the unloaded forms to the first stationconveyor.

The block removal station includes a cap removal/lockdown assembly thatremoves and replaces a cap of the form and that locks down a bottomassembly of the form, a dispatch assembly that removes a cured blockfrom a locked down bottom assembly of the form, a frame that supportsthe cap removal/lockdown assembly and the dispatch assembly, and adispatch conveyor that receives a removed cured block from the dispatchassembly and conveys the removed cured block therefrom. The capremoval/lockdown assembly includes at least one lifting rail adapted toengage a cap bracket attached to the cap of the form, at least onelockdown rail pivotally connected to the lifting rail and adapted toengage a pin attached to the bottom assembly of the form, and at leastone lifting cylinder attached to the lifting rail and movable between anengagement position whereby the lifting rail engages the cap bracket anda lockdown position whereby the lifting cylinder raises the lifting railto remove the cap from the bottom assembly and pivots the lockdown railsuch that the lockdown rail engages the pin to lock down the bottomassembly of the form. The dispatch assembly includes at least onedispatch cylinder mounted on the frame and a ram plate hingedly attachedto the dispatch cylinder for pushing a lightweight concrete compositeblock from the form.

A method for manufacturing lightweight concrete composite blocksincludes loading composite into a form of a desired shape, assemblingthe form loaded with composite, curing the composite into a lightweightconcrete composite block, and removing the lightweight concretecomposite block from the form. The method for manufacturing lightweightconcrete composite blocks further includes placing a conduit within theform at a designated depth prior to loading composite into a form.Loading the composite into a form of desired shape includes removing acap of the form from a bottom assembly of the form, delivering compositeinto the bottom assembly of the form, and replacing the cap onto thebottom assembly. Assembling the form loaded with composite includesdepressing a cap of the form onto a bottom assembly of the form andcoupling a latch attached to the cap with a catch attached to the bottomassembly. Removing the lightweight concrete composite block from theform includes uncoupling the latch attached to the cap of the form fromthe catch attached to the bottom assembly of the form, removing the capfrom the bottom assembly, locking down the bottom assembly of the form,uncoupling latches securing sidewalls of the bottom assembly to endwallsof the bottom assembly, rotating the sidewalls away from the endwalls,and pushing a lightweight concrete composite block from the locked downbottom assembly.

A method of assembling lightweight concrete composite blocks into astructure includes erecting a support frame, inserting blocks into thesupport frame, securing the blocks together, and securing the blocks tothe support frame. The method of assembling lightweight concretecomposite blocks into a structure further includes erecting a secondlevel support frame, inserting blocks into the second level supportframe, securing the blocks together, and securing the blocks to thesecond level support frame. The method of assembling lightweightconcrete composite blocks into a structure further includes cutting anopening into a block and installing a door or window in the opening. Themethod of assembling lightweight concrete composite blocks into astructure further includes attaching a cabinet support frame to a block,inserting a cabinet into the cabinet support frame, and securing thecabinet to the cabinet support frame and to the block.

It is therefore an object of the present invention to providelightweight concrete composite blocks suitable in building walls.

It is another object of the present invention to provide an apparatusand corresponding method for manufacturing lightweight concretecomposite blocks.

It is a further object of the present invention to provide a method ofusing lightweight concrete composite blocks in constructing a structure.

Still other objects, features, and advantages of the present inventionwill become evident to those of ordinary skill in the art in light ofthe following.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view illustrating a preferred embodiment of aform.

FIG. 2 is an end view illustrating a preferred embodiment of the form.

FIG. 3 is a perspective view illustrating a preferred embodiment of acap of the form.

FIG. 4 is a perspective view illustrating a preferred embodiment of abottom assembly of the form including an insert therein.

FIG. 5 is a perspective view illustrating an insert of the form.

FIG. 6 is an end view illustrating the form with the cap removed.

FIG. 7 is a perspective view illustrating a screed assembly for loadingand leveling a form.

FIG. 8 is a side view illustrating the screed assembly for loading andleveling a form.

FIG. 9 is a perspective view illustrating a block removal station with acap removal assembly raised to an upper level, a dispatch assembly in aclosed position, and an unloading conveyor.

FIG. 10 is a plan view illustrating an apparatus for manufacturingunitary lightweight concrete composite blocks according to the preferredembodiment.

FIG. 11 is a perspective view illustrating a standard installation.

FIG. 12 is a front view illustrating a second level installation.

FIG. 13 is a front view illustrating a framing installation and a heavycabinet installation.

FIG. 14 is an overhead view illustrating a framing installation and aheavy cabinet installation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

As illustrated in FIG. 11, the preferred embodiment of the block 10Adiscloses a rectangular block with a top end, a bottom end, and twosides. One side defines a raised tongue 106 while the opposite sidedefines a recessed groove 107, whereby blocks can be assembled in asuccessive fashion by fitting a tongue side into a groove side. Inaddition, the block 10A includes electrical conduit 200 and electricalboxes 201 for running electrical wire and making electrical connections.While the preferred embodiment discloses electrical conduit 200 andelectrical boxes 201, those of ordinary skill in the art will recognizethat any multitude of items normally used inside building walls may besubstituted, such as plumbing piping, air ducts, and the like. Theability of the block 10A to contain electrical conduit and electricalboxes makes it ideal for use as an interior wall in buildings.

As illustrated in FIG. 10, an apparatus 1 for manufacturing unitarylightweight concrete composite blocks 10A includes a form 10, a conveyorsystem 2, a form-loading station 3, a form assembly station 4, a curingoven 5, and a block removal station 6. The apparatus 1 utilizes a methodfor manufacturing unitary lightweight concrete composite blocks 10A thatincludes the steps of loading a form with lightweight concretecomposite, curing the lightweight concrete composite, and removing aunitary lightweight concrete composite block 10A from the form.

As illustrated in FIGS. 1-6, a form 10 is used to cure the lightweightconcrete composite into a desirable shape, which, in the preferredembodiment, is a unitary lightweight concrete composite block 10A. Thus,the preferred form 10 includes a bottom assembly 11 and a cap 12.Although the preferred embodiment discloses a unitary block 10A, thoseof ordinary skill in the art will recognize that a form producing anydesirable shape, such as a square, circle, or angle may be utilized.

In the preferred embodiment, the bottom assembly 11 is a rectangularplate 14 with two sidewalls 15 and two endwalls 16. Each sidewall 15 ishingedly attached along a respective long length of the rectangularplate 14. In addition, each sidewall 15 defines a lengthwise channel 17for forming a tongue 106 or groove 107 along the sides of each block. Inthe preferred embodiment, one sidewall 15 defines a channel 17 forforming a tongue 106, while the opposite sidewall 15 defines a channel17 for forming a groove 107 (see FIG. 11). Consequently, finished blockscan be assembled in a successive fashion by fitting a tongue side into agroove side. While, the preferred embodiment discloses a bottom assembly11 with sidewalls 15 with one tongue channel and one groove channel,those of ordinary skill in the art will recognize that, any combinationof tongue and groove channels 17, or any channel profile, may beutilized. Furthermore, the long edge of each sidewall 15 terminates inan L-shaped lip. Also, T-shaped latches 18 are hingedly attached to eachcorner of each sidewall 15, which rotate between locked and unlockedpositions.

Referring to FIGS. 2 and 6, each endwall 16 is attached along arespective short length of the rectangular plate 14. Catches 19 arefixedly attached by any suitable means, such as welding, at each cornerand in the middle of each endwall 16 for coupling with the latches 18.The long edge of each endwall 16 terminates in an L-shaped lip, and pins24 extend outward perpendicularly from each corner of each endwall 16.In addition, one endwall 16 defines conduit notches 23 for supportingelectrical conduit and electrical boxes inside the form 10. The conduitnotches 23 suspend the electrical conduit and electrical boxes at adesignated depth during the curing process. Consequently, the electricalconduit and electrical boxes will reside at the designated depth in thefinished block 10A. While the preferred embodiment of the insertdiscloses three conduit channels 23, those of ordinary skill in the artwill recognize that any number of conduit channels 23 may be utilized tosupport any multitude of different objects.

To assemble the bottom assembly 11, the sidewalls 15 rotate up to avertical position, thereby forming a rectangular box. Next, the latches18 rotate to the locked position and couple with the catches 19, therebysecuring the bottom assembly 11. This will be referred to as theassembled position. To disassemble the bottom assembly, the latches 18uncouple from the catches 19 and the sidewalls 15 rotate down to ahorizontal position. This will be referred to as the disassembledposition.

Referring to FIG. 3, the cap 12 is a rectangular plate with each longedge terminating in an L-shaped lip. Two L-shaped cap brackets 20 areattached by any suitable method, such as welding, to each end of the cap12 so that the cap brackets 20 are parallel with the two short edges ofthe cap 12 and face inward, thereby defining slots between the top ofthe cap 12 and each cap bracket 20. An L-shaped short bracket 25 isattached by any suitable method, such as welding, to a front edge of thecap 12 so that the L-shape is facing outward. An L-shaped tall bracket26 is attached by any suitable method, such as welding, to a back edgeof the cap 12 facing the same direction as the short bracket 25. A latch18 is hingedly attached to middle of each short edge of the cap 12,which rotates from an unlocked to a locked position. The perimeterdimensions of the cap 12 match the perimeter dimensions of the bottomassembly 11. When placed onto a bottom assembly 11 in the assembledposition, the latches 18 of the cap 12 couple with the catches 19 of thebottom assembly 11 to seal the form 10, which will be referred to as thelocked position. The latches 18 may also be uncoupled from the catches19 of the bottom assembly 11 to release the cap 12, which will bereferred to as the unlocked position.

Referring to FIGS. 4 and 5, an insert 13 is a rectangular plate with twosidewalls 21 and two endwalls 22. The dimensions of insert 13 are suchthat the insert 13 fits inside the bottom assembly 11. The two sidewallsterminate in an L-shaped lip. The insert 13 prevents lightweightcomposite concrete from filling the area of the form 10 occupied by theinsert 13. Thus, the insert 13 shortens the overall length of the form10 to produce a shorter block 10A. While the preferred embodimentdiscloses an insert 13 that shortens the form 10 by approximately 1/3,those of ordinary skill in the art will recognize that any size insert13 may shorten the length of the form 10 by any length. One endwall 22defines conduit notches 22A for supporting electrical conduit andelectrical boxes inside the form. The conduit notches 22A suspend theelectrical conduit and electrical boxes at a designated depth during thecuring process. Consequently, the electrical conduit and electricalboxes will reside at the designated depth in the finished block 10A.While the preferred embodiment of the insert discloses three conduitnotches 22A, those of ordinary skill in the art will recognize that anynumber of conduit notches 22A may be utilized to support any multitudeof different objects.

As illustrated in FIGS. 7-10, a conveying system 2 routes a plurality offorms 10 in a continuous loop simultaneously through all the stations ofthe apparatus 1, thereby creating a time efficient process. The conveyorsystem 2 includes a first station conveyor 7 a, a loading conveyor 8 a,a first roller conveyor 9 a, a second station conveyor 7 b, an unloadingconveyor 8 b, and a second roller conveyor 9 b. The first stationconveyor 7 a is the station conveyor disclosed in U.S. patentapplication Ser. No. 09/887,369, the disclosure of which is incorporatedherein by reference. While the preferred embodiment discloses thestation conveyor in U.S. patent application Ser. No. 09/887,369, thoseof ordinary skill in the art will recognize that any type of conveyingapparatus may be utilized. The loading conveyor 8 a is a belt conveyorwell known to those of ordinary skill in the art. While the preferredembodiment discloses a belt conveyor, those of ordinary skill in the artwill recognize that any conveying apparatus may be utilized. The secondstation conveyor 7 b is the station conveyor disclosed in U.S. patentapplication Ser. No. 09/887,369, the disclosure of which is incorporatedherein by reference. While the preferred embodiment discloses thestation conveyor in U.S. patent application Ser. No. 09/887,369, thoseof ordinary skill in the art will recognize that any type of conveyingapparatus may be utilized. The unloading conveyor 8 b is a belt conveyorthat is well known in the art. While the preferred embodiment disclosesa belt conveyor, those of ordinary skill in the art will recognize thatany conveying apparatus may be utilized.

The form-loading station 3 includes a cap removal/replacement assembly30 and a screed assembly 40. Referring to FIGS. 1 and 8, the capremoval/replacement assembly 30 includes a lifting cylinder 31, astabilizer bar 32, a short lifting rail 33, and a tall lifting rail 34.The lifting cylinder 31 is vertically suspended above the loadingconveyor 8 a and connects by any suitable means, such as a pin, to thecenter of the stabilizer bar 32 so that the stabilizer bar resides in ahorizontal plane. The short lifting rail 33 is an L-shaped rail that isattached to a back end of the stabilizer bar 32. The tall lifting rail34 is an L-shaped rail that is attached to a front end of the stabilizerbar 32. When the lifting cylinder 31 extends, the short lifting rail 33and tall lifting rail 33 lower to a position where they may engage acorresponding tall cap bracket 26 and short cap bracket 25, which willbe referred to as the engagement position. When the lifting cylinder 31retracts, the short lifting rail 33 and the tall lifting rail 34 raiseto a position above the screed assembly 40, which will be referred to asthe raised position.

The screed assembly 40 includes a frame 50 having supporting legs andscreed tracks 50A attached thereto. The legs mount to the foundation oneither side of the conveying system 3 by any suitable means, such asbrackets attached to each leg and bolts sunk into a foundation. Thescreed assembly 40 further includes a screed box 41, a leveling hopper42, an auger 43, a screed motor 44, two leveling cylinders 45, a screedcylinder 46, a filling conveyor 47, and a mounting bracket 48. Thescreed box 41 is a rectangular box with an open top and a slot in thebottom the same size as the top opening of the form 10. The edges of thescreed box 41 rest within the screed tracks 50A, which run perpendicularto the loading conveyor 8 a. The screed cylinder 46 is connected to theframe 50 between an end of the screed track 50A and a side of the screedbox 41. When the screed cylinder 46 extends, it slides the screed box 41directly over the loading conveyor 8A, which will be referred to as theloading position. When the screed cylinder 46 retracts, it slides thescreed box 41 to a position adjacent the loading conveyor 8A, which willbe referred to as the retracted position.

The leveling hopper 42 resides inside the screed box 41. The twoleveling cylinders 45, which are any suitable hydraulically orpneumatically operated cylinders, connect from the screed box 41 to theleveling hopper 42 using a mounting bracket 48. The leveling cylinders45 extend and retract their pistons to slide the leveling hopper 42inside the screed box 41. The auger 43 is mounted inside the levelinghopper 42 using any suitable means, such as bearings. The screed motor44 is coupled to the end of the auger 43 through a lengthwise slot inthe screed box 41. The slot allows the screed motor 44 and auger 43 toslide along with the leveling hopper 42 when the leveling cylinders 45extend and retract.

In operation, the first station conveyor 7 a conveys a form 10 onto adisabled loading conveyor 8 a. When the form 10 arrives at theform-filling station 3, the bottom assembly 11 is in the assembledposition with the cap 12 resting on top in the unlocked position. Thelifting cylinder 31 begins in the engagement position so that, as theform 10 arrives at the form filling station 3, the short lifting rail 33and the tall lifting rail 33 engage a corresponding tall cap bracket 26and a short cap bracket 25. Upon conveyance onto the loading conveyor 8a, the form 10 engages a micro-switch that outputs a signal thatoverrides the first station conveyor 7 a. Thus, first station conveyor 7a remains disabled during the filling of the form 10. The micro-switchfurther outputs a signal that retracts the lifting cylinder 31 to theraised position, thereby removing the cap 12. With the cap 12 removed,the operator inserts all necessary electrical conduit or electricalboxes into the form. Next, the lifting cylinder 31, in its retractedposition, engages a micro-switch that outputs a signal directing thescreed cylinder 46 to extend the screed box 41 to the loading positiondirectly over the bottom assembly 11. In the loading position, theleveling hopper 42 is located directly underneath a filling conveyor 47,which is any suitable conveyor, such as a belt conveyor. As the screedbox 40 reaches the loading position, it engages a micro-switch, whichoutputs a signal that opens a lightweight concrete composite source andactivates the filling conveyor 47 to deliver the lightweight concretecomposite to the leveling hopper 42. The lightweight concrete compositesource in the preferred embodiment is the lightweight concrete compositesource disclosed in U.S. patent application Ser. No. 09/887,369, thedisclosure of which is incorporated herein by reference. Themicro-switch further outputs a signal that activates the screed motor44, thereby rotating the auger 43 to evenly distribute the lightweightconcrete composite throughout the leveling hopper 42. A micro-switchpositioned within the leveling hopper 42 or the lightweight concretecomposite source senses when either the leveling hopper 42 is full orthe lightweight concrete composite source is empty. Upon sensing eithercondition, the micro-switch outputs a signal closing the lightweightconcrete composite source and deactivating the filling conveyor 47 andthe screed motor 44.

As generally illustrated in FIGS. 7 and 8, the micro-switch furtheroutputs a signal that activates the leveling cylinders 45, which slowlymove the leveling hopper 42 forward over the bottom assembly 11 to aposition beyond the bottom assembly 11. When the leveling hopper 42travels fully beyond the bottom assembly 11, it engages a micro-switchthat reverses the leveling cylinders 45, which slowly move the levelinghopper 42 backward over the bottom assembly 11 to the loading position.The movement of the leveling hopper 42 over the bottom assembly 11 fillsand levels the bottom assembly 11 with the lightweight concretecomposite contained in the leveling hopper 42. As the leveling cylinders45 fully retract, the leveling hopper 42 engages a micro-switch thatoutputs a signal resulting in the screed cylinder 46 returning thescreed box 41 to the retracted position. When the screed cylinder isfully retracted, a micro-switch outputs a signal that activates thelifting cylinder 31 to extend to the engagement position, therebyreplacing the cap 12 back onto the bottom assembly 11. Upon replacementof the cap 12, a micro-switch outputs a signal that activates theloading conveyor 8 a to move the form 10 forward toward the nextstation, the form assembly station 4, via the first roller conveyor 9 a.Upon conveyance of the form 10 from the loading conveyor 8 a, amicro-switch signals the loading conveyor 8 a to disable in preparationto receive another form 10.

In the preferred embodiment, the form assembly station 4 is a manuallyoperated station. First, the operator depresses the cap 12 onto thebottom assembly 12, thereby compressing the lightweight concretecomposite within the form. Next, the operator couples the latches 18 ofthe cap 12 to the catches of the bottom assembly 11, thereby sealing theform. Finally, the operator delivers the form from the first rollerconveyor 9 a to the second station conveyor 7 b to convey the formthrough the curing oven. While the preferred embodiment discloses amanually operated form assembly station 4, those of ordinary skill inthe art will recognize that the form assembly station 4 may beautomated.

As illustrated in FIG. 10, the dotted line designates an area of thestation conveyor 2 enclosed by the curing oven 5. The second stationconveyor 7 b moves the form 10 through the curing oven 5, which is at atemperature sufficient to accelerate curing. As the form 10 travelsthrough the curing oven 5, the lightweight concrete composite cures. Thecuring oven 5 should be of a sufficient size to allow adequate time forproper curing to occur. When the form 10 exits the curing oven 5, thelightweight concrete composite has hardened into a unitary lightweightconcrete composite block 10A. The second station conveyor 7 b continuesto move the form 10 to the block removal station 6.

As illustrated in FIGS. 9 and 10, the last station is a block removalstation 6. The block removal station 6 includes a frame 150, a capremoval/lockdown assembly 60, a dispatch assembly 70, and a dispatchconveyor 51. The frame 150 includes four vertical bars and fourhorizontal crossbars attached together by any suitable means, such aswelding, to form a wire-frame box directly over the unloading conveyor 8b. The four vertical bars are attached to a base that mounts to afoundation using any suitable means, such as bolts, sunk into thefoundation.

The cap removal/lockdown assembly 60 includes lifting cylinders 61,lifting rails 62, rail rods 63, pivot rods 64, support brackets 65,lockdown rods 66, and lockdown rails 67. The lifting cylinders 61 arevertically suspended directly above the frame for extending andretracting from a raised position to an engagement position. The liftingrails 62 are C-shaped rails attached to the ends of the liftingcylinders 61 for engaging the cap brackets 20 of the form 10. Supportbrackets 65 attached to the frame 150 couple with the pivot rods 64 byany suitable means, such as bearings, so that the pivot rods 64 rotatefreely. The rail rods 63 fixedly attach by any suitable means, such aswelding, to the pivot rods 64, thereby extending perpendicularly tohingedly attach to the lifting rails 62. The lockdown rods 66 arefixedly attached to the ends of the pivot rods 64 opposite the rail rods63, thereby extending perpendicularly to hingedly attach to the lockdownrails 67. The lockdown rails 67 are L-shaped channels with a locking tab68 attached in the center by any suitable means, such as welding, forengaging the pins 24 of the form 10. When the lifting cylinders 61extend, the lifting rails 62 lower to a position where they may engagethe cap brackets 20. Simultaneously, the rail rods 63 rotate the pivotrods 64, which rotate the lockdown rods 66, thereby raising the lockdownrails 67 to a level sufficient to clear any forms 10 located on theunloading conveyor 8 b. This position will be referred to as theengagement position. Oppositely, when the lifting cylinders 61 retract,thereby raising the lifting rails 62 to remove the cap 12, the lockdownrails 67 lower to engage the pins 24 of the bottom assembly 11. Thiswill be referred to as the lockdown position.

The dispatch assembly 70 includes dispatch cylinders 71, mountingbrackets 72, and a ram plate 73. The dispatch cylinders 71 mounthorizontally to the frame 150 via the mounting brackets 72. Bothdispatch cylinders 71 are hingedly attached to the ram plate 73, wherebythe ram plate 73 can rotate between a ram position and a bypassposition. When the dispatch cylinders 71 extend, the ram plate 73remains in a vertical position to strike a concrete composite block 10Aand push the concrete composite block 10A onto the dispatch conveyor 51,which will be referred to as the ram position. When the dispatchcylinders 71 retract, the ram plate 73 rotates to a horizontal positionto bypass the form 10, which will be referred to as the bypass position.

In operation, the second station conveyor 7 b delivers a form 10 onto adisabled unloading conveyor 8 b. In this preferred embodiment, the forms10 are spaced along the conveyor system 2 such that a form 10 enters theblock removal station 6 at the same time another form 10 enters theform-loading station 3. Consequently, the block removal station 6controls the stopping and starting of the first station conveyor 7 a.Nevertheless, those of ordinary skill in the art will recognize that theform-loading station 3 could control the first station conveyor 7 a.Furthermore, although this preferred embodiment discloses thesynchronous operation of the block removal station 6 and theform-loading station 3, those of ordinary skill in the art willrecognize other control schemes for regulating the movement of the formsthrough the block removal station 6 and the form-loading station 3.

The lifting cylinders 61 of the cap removal/lockdown assembly 60 beginin the engagement position so that, as the form 10 arrives at the blockremoval station 6, the cap rails 62 engage the cap brackets 20 of thecap 12. Upon conveyance onto the unloading conveyor 8 b, the form 10engages a micro-switch that outputs a signal that overrides the secondstation conveyor 7 b. Thus, second station conveyor 7 b remains disabledduring the removal of the block 10A. In addition, the micro-switchoutputs a signal that informs an operator to unlock the cap 12 from thebottom assembly 11 by uncoupling the corresponding latches 18 from thecatches 19. After this is done, the operator engages a micro-switch thatoutputs a signal that retracts the lifting cylinders 61 to the lockdownposition, thereby removing the cap 12 and locking down the bottomassembly 11. Upon lockdown of the bottom assembly 11, a micro-switchoutputs a signal that informs the operator to uncouple the remaininglatches 19 on the bottom assembly 11 and rotate the sidewalls 15 down toa horizontal position. Next, the operator engages a micro-switch thatoutputs a signal to the dispatch cylinders 71 to extend and retract,thereby pushing the finished block 10A onto the dispatch conveyor 51.Then the operator reassembles the bottom assembly 11. Once the finishedblock 10A is removed and the bottom assembly is reassembled, theoperator engages a micro-switch, which outputs a signal to extend thelifting cylinders 61 to the engagement position, thereby placing the cap12 onto the bottom assembly 11. Finally, the unloading conveyor 8 badvances the form to the second roller conveyor 9 b to start the processall over again.

The preferred embodiment employs a micro-switch control scheme wherebythe engaging of various micro-switches controls the conveyor system 2,the form-loading station 3, and the block removal station 6. Themicro-switches employed are of a type well known to those of ordinaryskill in the art, such as optical sensing switches, pressure switches,mechanically activated switches, and the like. Further, the use of suchswitches to control the components of the apparatus for manufacturinglightweight concrete composite blocks 10A is well known and understoodby those of ordinary skill in the art. It should be understood, however,that a computer control scheme could be implemented in the apparatus formanufacturing lightweight concrete composite blocks 10A.

To assemble the lightweight concrete blocks 10A into a functionalstructure, four types of installation methods are used, standardinstallation, second level installation, framing installation, and heavycabinet installation. Standard installation is intended for installationon the first floor of a structure. Second level installation is intendedfor installation of floors above the first floor. Finally, framinginstallation is intended for installation around doors and windows, andcabinet installation is intended for the mounting of cabinets onto thelightweight concrete blocks 10A.

In a standard installation, the first step is to erect a support frame.As shown in FIG. 11, the support frame 100 in the preferred embodimentincludes a side support 101, a base support 102, and a top support 103.All three supports are made from “C” channel, which is erected usingapplication methods commonly known in the industry. After erecting thesupport frame, matching sides of the base support 102 and the topsupport 103 are folded parallel with the foundation. Next, an adhesive,such as glue, is applied to the inside of the support frame 100. A firstblock 104 is then placed vertically into the support frame 100 so thatit rests at the farthest end of the support frame 100, and the adhesiveis allowed to dry. After applying more adhesive, a second block 105 isplaced vertically into the support frame so that the tongue of the block105 inserts into the groove of the first block 104. The above process isthus repeated until the entire support frame 100 is filled with blocks.At that time, the base support 102 and top support 103 are folded backto the original “C” channel shape. Finally, the entire structure issecured by installing screws through the support frame 100 into theblocks.

Referring to FIG. 12, to install a second level or higher, a first orlower level must be installed as described above. Then, an intermediatesupport 110, which is a “C” channel, must be attached with any suitablemethod such as glue or screws, to the top support 103 with the “C”facing down. Next, a base support 106, which is a “C” channel, ismounted facing up to the intermediate support 110 using any suitablemethod, such as glue or screws. With the base support 102 mounted, therest of level is installed according to the steps described above in thestandard installation.

Referring to FIGS. 13 and 14, windows and doors may be “framed” withmethods that are well known in the trade. Illustratively, an opening fora window or door is cut into a block. A frame for the window or door isthen secured to the block at the edges of the opening using any suitabletechnique such as screws or adhesives. The window or door is theninstalled in the frame using techniques well known to those of ordinaryskill in the art.

Referring to FIGS. 13 and 14, heavy cabinet installation requires asection of wall to be installed as described above. After erecting thewall, a lower “C” channel and an upper “C” channel are attached to ablock of the wall using a suitable means, such as screws. Next, a left“C” channel and a right “C” channel are attached to either the block ofthe wall or more preferably to the “C” channel of the support frameusing a suitable means, such as screws. Then, the outer sections ofupper, lower, left, and right “C” channels are folded perpendicular tothe wall so that a cabinet may be received therein. Finally a cabinet isplaced in the upper, lower, left, and right “C” channels and secured tothe wall and the upper, lower, left, and right “C” channels using anysuitable means, such as screws.

Although the present invention has been described in terms of theforegoing embodiment, such description has been for exemplary purposesonly and, as will be apparent to those of ordinary skill in the art,many alternatives, equivalents, and variations of varying degrees willfall within the scope of the present invention. That scope, accordingly,is not to be limited in any respect by the foregoing description;rather, it is defined only by the claims that follow.

1-32. (canceled)
 33. A block utilized in constructing interior walls,comprising: lightweight concrete composite cured into a shape of aninterior wall, the wall, comprising: first and second sidewalls, firstand second endwalls, and first and second faces including a depththerebetween.
 34. The block utilized in constructing interior wallsaccording to claim 33, further comprising a conduit disposed within thedepth between the first and second faces.
 35. The block utilized inconstructing interior walls according to claim 34, wherein at least oneend of the conduit protrudes from the block.
 36. The block utilized inconstructing interior walls according to claim 34, wherein at least oneend of the conduit connects to an electrical box disposed within thedepth between the first and second faces.
 37. The block utilized inconstructing interior walls according to claim 36, wherein theelectrical box extends to an exterior surface of one of the first andsecond faces to permit access thereto.
 38. The block utilized inconstructing interior walls according to claim 34, wherein the conduitcomprises plumbing piping.
 39. The block utilized in constructinginterior walls according to claim 33, wherein the first sidewallincludes a tongue and the second sidewall includes a groove. 40-50.(canceled)